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/*
* open_dev_console - open /dev/console
*
* COPYRIGHT (c) 1989-2009.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems.h>
#include <rtems/libio.h>
#include <rtems/console.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
/*
* This is a replaceable stub which opens the console, if present.
*/
void rtems_libio_post_driver(void)
{
/*
* Attempt to open /dev/console.
*/
if ( open( CONSOLE_DEVICE_NAME, O_RDONLY, 0 ) != STDIN_FILENO ) {
/*
* There may not be a console driver so this is OK.
*/
return;
}
/*
* But if we find /dev/console once, we better find it twice more
* or something is REALLY wrong.
*/
if ( open( CONSOLE_DEVICE_NAME, O_WRONLY, 0 ) != STDOUT_FILENO ) {
_Internal_error( INTERNAL_ERROR_LIBIO_STDOUT_FD_OPEN_FAILED );
}
if ( open( CONSOLE_DEVICE_NAME, O_WRONLY, 0 ) != STDERR_FILENO ) {
_Internal_error( INTERNAL_ERROR_LIBIO_STDERR_FD_OPEN_FAILED );
}
atexit(rtems_libio_exit);
}
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